Dates & Times


DateTime and TimeSpan both use ticks to represents time.
A tick is equal to 100 nanoseconds (or one ten-millionth of a second)


DateTime_IsValidDate
DateTime_IsValidTime


default to "01/02/2001 12:00:00 AM" when you use System.DateTime


IsDate - does it/should it recognise UK and/or US formats or is it PC/System specific/dependent ??


Is today the first day of the current month

If Date.Today.Day = 1 Then 
   Console.WriteLine("First day of the month")
End If


How many days have passed since January 1

Console.WriteLine(DateTime.Today.DayOfYear) 


Get the currrent time - note that ticks are included

Console.WriteLine(DateTime.Now.TimeOfDay) 

The TimeOfDay property returns a TimeSpan object which represents a difference between dates.





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